Question about 1994 Buick Park Avenue
I thought the coils in my Buick (3800)were bad cause #3 was firing intermittently. So I changed the #2 coil with the #3 coil and also changed the igniter. I worked for a day the started missing again. Tested #3 coil and was getting NO spark! Switched #3 with #2 and everything started working again. U think the contact points on these coils need cleaning?
These engines have 3 coils and are paired 1 and 4 2 and 5 3 and 6 with a spark noid run to see if the paired cylinder has no spark if so remove coil from module and test the power supply to coil and with a logic probe test the trigger side if blinking with no spark your coil is bad. not blinking replace module.
Posted on Apr 20, 2014
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Posted on Jan 02, 2017
Most likely the ignition module the coils sit on is not firing that coil.....a 90% chance.
Instead of changing the coil......just change position of the coil on the module to check this.
After you get it running good......change the crank pickup....they should be changed on every tune up on the 3.8......
Posted on Aug 25, 2009
Has the service engine light come on? If so, have the codes pulled and it will narrow down the cylinder that is causing the problem.
If no service engine light, have you narrowed it down to one cylinder or is it random.
Let me know and we will go from there.
Posted on Mar 27, 2009
the problem has to be wireing.checking with an ohm meter will not tell you for sure how much current the wier will carry so you need need to find where it starts and ends and disconnect bothe ends.put a jumper to ground in one end then hook a test light to your positive battery terminal,put in the other end of the harness and see if the light is bright or dim.
Posted on Jul 30, 2009
Testimonial: "good and fast response "
You will have to change the sencer to see,but i had once the same problem and in the wiering harness underneat the radiator i found a brocken wire all coroded.That did fix the problem.good luck.
Posted on Jan 07, 2011
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